Caused by org.springframework.beans.factory.NoSuchBeanDefinitionException

使用Spring时. 报出了如下错误:

十月 20, 2016 12:53:06 下午 org.apache.catalina.core.StandardContext listenerStart
严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appDefaultController': Unsatisfied dependency expressed through field 'appApplicationService': No qualifying bean of type [org.service.app.AppApplicationService] found for dependency [org.service.app.AppApplicationService]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.service.app.AppApplicationService] found for dependency [org.service.app.AppApplicationService]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573)at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:350)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:775)at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541)at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)at java.util.concurrent.FutureTask.run(FutureTask.java:262)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.service.app.AppApplicationService] found for dependency [org.service.app.AppApplicationService]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1398)at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1051)at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1018)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:570)... 24 more十月 20, 2016 12:53:06 下午 org.apache.catalina.core.StandardContext startInternal
严重: Error listenerStart
2016-10-20 12:53:06.879 [localhost-startStop-1] ERROR [ContextLoader.java] - Context initialization failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appDefaultController': Unsatisfied dependency expressed through field 'appApplicationService': No qualifying bean of type [org.app.AppApplicationService] found for dependency [org.app.AppApplicationService]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.service.app.AppApplicationService] found for dependency [org.service.app.AppApplicationService]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:350) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:775) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) ~[spring-context-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444) ~[spring-web-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326) ~[spring-web-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) ~[spring-web-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939) ~[tomcat-embed-core-7.0.47.jar:7.0.47]at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) ~[tomcat-embed-core-7.0.47.jar:7.0.47]at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-7.0.47.jar:7.0.47]at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) ~[tomcat-embed-core-7.0.47.jar:7.0.47]at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) ~[tomcat-embed-core-7.0.47.jar:7.0.47]at java.util.concurrent.FutureTask.run(FutureTask.java:262) ~[?:1.7.0_79]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [?:1.7.0_79]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [?:1.7.0_79]at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.service.app.AppApplicationService] found for dependency [org.service.app.AppApplicationService]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1398) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1051) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1018) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:570) ~[spring-beans-4.3.0.RELEASE.jar:4.3.0.RELEASE]... 24 more

看错误, 一直以为是注入的bean写错了, 或者没有加@Autowired之类的注解, 后来折腾了半天, 才发现, 引入的@Service包引入错了

在AppApplicationService类上的@Service, 我的代码中引入了alibaba的Service类: import com.alibaba.dubbo.config.annotation.Service;

实际应该引入Spring的Service类: import org.springframework.stereotype.Service;

修改后, 问题消失, 看来问题还要多方面考虑解决啊!

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